<template>
  <div class="login_container">
    <el-row>
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <!-- 登录的表单 -->
        <el-form
          class="login_form"
          :model="loginForm"
          :rules="rules"
          ref="loginForms"
        >
          <h1>Hello</h1>
          <h2>欢迎来到途游To you!</h2>
          <el-tabs
            v-model="activeName"
            class="demo-tabs"
            @tab-click="handleClick"
          >
            <el-tab-pane label="登录" name="first">
              <el-form-item prop="username">
                <el-input
                  :prefix-icon="User"
                  v-model="loginForm.username"
                ></el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input
                  type="password"
                  :prefix-icon="Lock"
                  v-model="loginForm.password"
                  show-password
                ></el-input>
              </el-form-item>
              <el-form-item>
                <el-button
                  :loading="loading"
                  class="login_btn"
                  type="primary"
                  size="default"
                  @click="login"
                  >登录</el-button
                >
              </el-form-item>
            </el-tab-pane>
            <el-tab-pane label="注册" name="second">
              <el-form-item prop="username">
                <el-input
                  :prefix-icon="User"
                  v-model="loginForm.username"
                ></el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input
                  type="password"
                  :prefix-icon="Lock"
                  v-model="loginForm.password"
                  show-password
                ></el-input>
              </el-form-item>
              <el-form-item>
                <el-button
                  :loading="loading"
                  class="login_btn"
                  type="primary"
                  size="default"
                  @click="register"
                  >注册</el-button
                >
              </el-form-item>
            </el-tab-pane>
          </el-tabs>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue'
import { reactive, ref } from 'vue'
import { useRouter, useRoute } from 'vue-router'
import { ElNotification } from 'element-plus'
//引入获取当前时间的函数
import { getTime } from '@/utils/time'
//引入用户相关的小仓库
import { useUserStore } from '@/stores/user'
let useStore = useUserStore()
//获取el-form组件
let loginForms = ref()
//获取路由器
let $router = useRouter()
//路由对象
let $route = useRoute()
//定义变量控制按钮加载效果
let loading = ref(false)

const activeName = ref('first')

import type { TabsPaneContext } from 'element-plus'
const handleClick = (tab: TabsPaneContext) => {
  if (tab.props.label == '登录') {
    loginForm.username = 'admin'
    loginForm.password = '123456'
  } else {
    loginForm.username = ''
    loginForm.password = ''
  }
}
//收集账号与密码的数据
let loginForm = reactive({ username: 'admin', password: '123456' })
//登录按钮回调
const login = async () => {
  //保证全部表单相校验通过再发请求
  await loginForms.value.validate()
  //加载效果:开始加载
  loading.value = true
  //点击登录按钮以后干什么?
  //通知仓库发登录请求
  //请求成功->首页展示数据的地方
  //请求失败->弹出登录失败信息
  try {
    //保证登录成功
    await useStore.userLogin(loginForm)
    //编程式导航跳转到展示数据首页
    //判断登录的时候,路由路径当中是否有query参数，如果有就往query参数挑战，没有跳转到首页
    let redirect: any = $route.query.redirect
    let data: any = $route.query.data
    if (data) {
      $router.push({
        path: redirect,
        query: {
          item: data
        }
      })
    } else {
      $router.push(redirect)
    }

    //登录成功提示信息
    ElNotification({
      type: 'success',
      message: '欢迎回来',
      title: `HI,${getTime()}好`
    })
    //登录成功加载效果也消失
    loading.value = false
  } catch (error) {
    //登录失败加载效果消息
    loading.value = false
    //登录失败的提示信息
    ElNotification({
      type: 'error',
      message: (error as Error).message
    })
  }
}

const register = async () => {
  //保证全部表单相校验通过再发请求
  await loginForms.value.validate()
  //加载效果:开始加载
  loading.value = true
  //点击登录按钮以后干什么?
  //通知仓库发登录请求
  //请求成功->首页展示数据的地方
  //请求失败->弹出登录失败信息
  try {
    //保证登录成功
    await useStore.userregister(loginForm)

    //登录成功提示信息
    ElNotification({
      type: 'success',
      message: '注册成功！',
      title: `快去登录吧！`
    })
    activeName.value = 'first'
    loginForm.username = ''
    loginForm.password = ''
    //登录成功加载效果也消失
    loading.value = false
  } catch (error) {
    //登录失败加载效果消息
    loading.value = false
    //登录失败的提示信息
    ElNotification({
      type: 'error',
      message: (error as Error).message
    })
  }
}
//自定义校验规则函数
const validatorUserName = (rule: any, value: any, callback: any) => {
  console.log(rule);
  //rule:即为校验规则对象
  //value:即为表单元素文本内容
  //函数:如果符合条件callBack放行通过即为
  //如果不符合条件callBack方法,注入错误提示信息
  if (value.length >= 5) {
    callback()
  } else {
    callback(new Error('账号长度至少五位'))
  }
}

const validatorPassword = (rule: any, value: any, callback: any) => {
  console.log(rule);
  if (value.length >= 6) {
    callback()
  } else {
    callback(new Error('密码长度至少六位'))
  }
}

//定义表单校验需要配置对象
const rules = {
  //规则对象属性:
  //required,代表这个字段务必要校验的
  //min:文本长度至少多少位
  //max:文本长度最多多少位
  //message:错误的提示信息
  //trigger:触发校验表单的时机 change->文本发生变化触发校验,blur:失去焦点的时候触发校验规则
  username: [
    // { required: true, min: 6, max: 10, message: '账号长度至少六位', trigger: 'change' }
    { trigger: 'change', validator: validatorUserName }
  ],
  password: [
    // { required: true, min: 6, max: 15, message: '密码长度至少6位', trigger: 'change' }
    { trigger: 'change', validator: validatorPassword }
  ]
}
</script>
<style scoped>
.login_container {
  width: 100%;
  height: 100vh;
  background: url('@/assets/bg2.jpg') no-repeat;
  background-size: cover;
  .login_form {
    position: relative;
    width: 80%;
    top: 30vh;
    padding: 40px;

    h1 {
      color: white;
      font-size: 40px;
    }

    h2 {
      font-size: 20px;
      color: white;
      margin: 20px 0px;
    }

    .login_btn {
      width: 100%;
    }
  }
}
</style>
